{"product_id":"ignition-coil-and-iridium-spark-plugs-for-saturn-astra-2008-2009-1-8l","title":"Ignition Coil and Iridium Spark Plugs for Saturn Astra (2008-2009) 1.8L","description":"\u003ch2\u003eDirect-Fit Ignition Coil Pack and Iridium Spark Plug Kit for 2008-2009 Saturn Astra\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and iridium spark plug kit replaces heat-degraded factory ignition components on the 2008-2009 Saturn Astra to resolve cylinder misfires, restore clean combustion, and sharpen throttle response.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Saturn Astra Coil Pack Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe factory monoblock coil cassette on the \u003cstrong\u003eAstra H\u003c\/strong\u003e sits directly atop the cylinder head inside the valve cover recess, continuously absorbing intense radiant heat. Over time, thermal cycling breaks down the internal epoxy potting and fine copper windings, causing dielectric breakdown, micro-arcing, and intermittent P0300 through P0304 misfire codes. Worn factory plugs also widen their gap, placing higher voltage demands on the aging pack until output drops significantly.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive overhaul kit features an engineered four-tower ignition cassette paired with premium fine-wire iridium spark plugs. The coil rail utilizes high-grade thermal resin encapsulation and heat-stabilized thermoplastic boots to resist insulation rupture and moisture intrusion under high thermal loads. Combined with iridium-tipped center electrodes requiring lower firing voltages, this system ensures a concentrated, reliable spark arc for efficient flame front development and smooth high-RPM operation.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2008-2009 Saturn Astra\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eZ18XER\u003c\/strong\u003e (1.8L Ecotec) \/ \u003cstrong\u003eAstra H\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e138 hp \/ 125 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eUF606\u003c\/strong\u003e, \u003cstrong\u003e12137619385\u003c\/strong\u003e, \u003cstrong\u003e12138643360\u003c\/strong\u003e, \u003cstrong\u003e12138647463\u003c\/strong\u003e, \u003cstrong\u003e12138678438\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2008 Saturn Astra XE 1.8L L4 (Z18XER)\u003c\/li\u003e\n  \u003cli\u003e2008 Saturn Astra XR 1.8L L4 (Z18XER)\u003c\/li\u003e\n  \u003cli\u003e2009 Saturn Astra XE 1.8L L4 (Z18XER)\u003c\/li\u003e\n  \u003cli\u003e2009 Saturn Astra XR 1.8L L4 (Z18XER)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the Astra H Astra?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2008-2009 Saturn Astra equipped with the \u003cstrong\u003eZ18XER\u003c\/strong\u003e 1.8L engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the iridium spark plugs pre-gapped?\u003c\/strong\u003e\u003cbr\u003e Yes, the included iridium plugs come pre-gapped to OEM factory tolerances for immediate bolt-on installation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Saturn European Precision Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered for the European-designed \u003cstrong\u003eAstra H\u003c\/strong\u003e platform, this ignition kit delivers precise signal synchronization and stable primary-to-secondary voltage transfer, keeping sensitive onboard engine management systems happy and check engine lights off.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50603690655992,"sku":"DS-EEFGIFDF8","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-saturn-astra-2008-2009-1-8l-1.jpg?v=1790087884","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-saturn-astra-2008-2009-1-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}